Here's what rhymes with undefirable.
viable liable undeniable deniable reliable unreliable pliable notifiable justifiable unjustifiable unverifiable certifiable identifiable verifiable rectifiable classifiable unidentifiable Words that almost rhyme with undefirable
parietal desirable undesirable sizable sizeable definable undefinable decidable excitable indefinable likable likeable risible liveable advisable assignable describable survivable indescribable ammoniacal inadvisable indictable maniacal analyzable ascribable recyclable climbable unlikeable unliveable libidinal realizable cognizable demoniacal nonassignable irreconcilable reconcilable monomaniacal recognizable unrecognizable